What is the pollen count in Katy today?

Today's pollen levels in Katy: Tree pollen is Very High, Grass pollen is Moderate, Weed pollen is None. Tree pollen is the dominant type right now, driven by Oak and Birch.

What does a Very High pollen count mean in Katy?

A Very High pollen count means concentrations are at their peak. Nearly all allergy sufferers will experience noticeable symptoms, and limiting outdoor exposure is recommended.

What are the main allergy triggers in Katy right now?

The primary allergy triggers in Katy today are Tree (Oak and Birch) and Grass (Grass). These pollen types are at elevated levels and are most likely to cause symptoms for sensitive individuals.

What should allergy sufferers do when pollen is Very High in Katy?

When pollen is Very High in Katy, limit outdoor time during midday when concentrations peak. Keep windows closed, shower after being outside, and consider taking antihistamines before symptoms start.

Does weather affect pollen levels in Katy?

Yes, weather directly affects pollen levels in Katy. Wind spreads pollen farther, rain washes it from the air, and humidity can either trap or disperse particles.

Katy, TX Pollen Count Today

Live pollen forecast and air quality for Katy, Texas

Breathability™ Score

/10

Challenging day - reduce exposure during peak pollen times.

Today's Pollen Levels in Katy

Tree pollen and Grass pollen are both elevated today in Katy, which is driving the Breathability™ Score down. People sensitive to multiple pollen types may notice stronger symptoms. With a Breathability™ Score of 2, today may feel like a tougher allergy day.

Breathability™ Score is 2/10
Tree pollen is Very High, led by Oak and Birch
Grass pollen is Moderate, led by Grass
Weed pollen is None, led by Ragweed and Mugwort
Air quality is Good today

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Yesterday's Pollen in Katy

↑Tree pollen: Moderate yesterday, Very High todayHigher

↑Grass pollen: Low yesterday, Moderate todayHigher

→Weed pollen: None yesterday, None today

Pollen rose from Moderate to Very High for tree pollen since yesterday.

You may notice stronger symptoms today compared to yesterday.

How Today's Pollen May Affect You

Mild allergy sufferers

You may feel symptoms sooner today. Tree pollen is elevated and air quality is Good, so lean toward shorter outings and cleaner indoor air.

Moderate allergy sufferers

Today may feel challenging. Limit prolonged outdoor time, keep indoor air filtered, and prioritize lower-exposure times of day.

Severe allergy sufferers

This may be a high-burden day. Minimize outdoor exposure where possible and focus on indoor spaces with filtered air.

5-Day Pollen Forecast

Today

Apr 15

Overall: Very High

Tree: Very High

Grass: Moderate

Weed: None

Wind: 16 mph (may spread pollen)

Rain: 73% (may wash pollen out)

Humidity: 74%

Thu

Apr 16

Overall: Very High

Tree: Very High

Grass: Moderate

Weed: None

Wind: 15 mph (may spread pollen)

Rain: 0%

Humidity: 79%

Fri

Apr 17

Overall: Very High

Tree: Very High

Grass: Moderate

Weed: None

Wind: 18 mph (may spread pollen)

Rain: 0%

Humidity: 78%

Sat

Apr 18

Overall: Moderate

Tree: Moderate

Grass: Low

Weed: None

Wind: 18 mph (may spread pollen)

Rain: 77% (may wash pollen out)

Humidity: 85%

Sun

Apr 19

Overall: Moderate

Tree: Moderate

Grass: Moderate

Weed: None

Wind: 16 mph (may spread pollen)

Rain: 86% (may wash pollen out)

Humidity: 60%

Tree Pollen in Katy Today

Tree pollen in Katy is Very High today, reaching 345.05 grains/m³. Oak and Birch are the dominant contributors. At this level, most people with tree pollen allergies will experience symptoms, and even mildly sensitive individuals may notice eye irritation or sneezing.

Common Symptoms

Sneezing
Runny or stuffy nose
Itchy, watery eyes
Scratchy throat
Sinus pressure

Species Breakdown

Oak345.05 grains/m³

Birch258.29 grains/m³

Alder0 grains/m³

Hazel0 grains/m³

Grass Pollen in Katy Today

Grass pollen in Katy is Moderate today, reaching 49.68 grains/m³. Grass is currently elevated. People with grass pollen sensitivity may notice nasal congestion and itchy eyes, especially during outdoor activities.

Common Symptoms

Itchy nose and eyes
Sneezing fits
Nasal congestion
Watery eyes
Coughing or wheezing for sensitive individuals

Species Breakdown

Grass49.68 grains/m³

Weed Pollen in Katy Today

Weed pollen in Katy is None today. Weed pollen season runs from late summer into fall (August through October), with ragweed as the primary trigger for most allergy sufferers. Current levels are low enough that most people should feel comfortable outdoors.

Species Breakdown

Ragweed0 grains/m³

Mugwort0 grains/m³

Air Quality in Katy Today

🌬️

Air Quality

Good

Air Pollutant Breakdown

PM2.5Good

6 µg/m³

Tiny particles smaller than 2.5 micrometers that can reach deep into your lungs and bloodstream. High levels can affect breathing and heart health.

PM10Good

9 µg/m³

Larger particles up to 10 micrometers, like dust or pollen. They can irritate your airways and worsen allergies or asthma.

Ozone (O3)Good

83 µg/m³

Elevated levels irritate airways and can worsen asthma symptoms.

Nitrogen Dioxide (NO2)Good

3.3 µg/m³

A respiratory irritant from vehicle exhaust that can trigger inflammation in sensitive airways.

Sulfur Dioxide (SO2)Good

1.6 µg/m³

Even brief exposure can tighten airways, especially for people with asthma.

Carbon Monoxide (CO)Good

149.8 µg/m³

High levels reduce oxygen delivery in the body, compounding breathing difficulty on high-pollen days.

Weather in Katy Today

☁️

Weather

82°F

Partly cloudy

Humidity

62%

Wind

14 mph S

Feels Like

84°F

Pressure

1016 mb

Frequently Asked Questions

Allergy Guides and Resources

Seasonal pollen guides, daily city rankings, and practical tips for managing your allergies.

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